公开(公告)号：WO2022020610A1

公开(公告)日：2022-01-27

申请号：PCT/US2021/042805

申请日：2021-07-22

Applicant: QUALCOMM INCORPORATED

Inventor： YANG, Lin ,  TIAN, Bin ,  KIM, Youhan

IPC: H04W74/08

Abstract: This disclosure provides methods, devices and systems for clear channel assessment (CCA). In one aspect a device performs a first clear channel assessment (CCA) check on a primary subchannel of a channel having a total bandwidth greater than or equal to 40 megahertz (MHz), a plurality of subchannels of the channel collectively spanning the total bandwidth of the channel, the plurality of subchannels including the primary subchannel and one or more secondary subchannels, the primary subchannel and the one or more secondary subchannels each having a bandwidth of 20 MHz, performs, on each of the one or more secondary subchannels, a respective second CCA check, and transmits a communication on the channel based on a status of each of the primary subchannel and the one or more secondary subchannels that is based on the performance of the respective second CCA check or the first CCA check.

公开(公告)号：WO2021126860A1

公开(公告)日：2021-06-24

申请号：PCT/US2020/065133

申请日：2020-12-15

Applicant: QUALCOMM INCORPORATED

Inventor： SHELLHAMMER, Stephen Jay ,  VERMANI, Sameer ,  YANG, Lin ,  CHEN, Jialing Li ,  DOAN, Dung Ngoc ,  TIAN, Bin

IPC: H04L1/00 ,  H04B7/04 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0619 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/0068 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0057 ,  H04W24/10 ,  H04W84/12

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for a link adaptation protocol in a wireless local area network (WLAN). In one aspect, the link adaptation protocol may be used to select a transmission rate option (such as a modulation and coding scheme (MCS)) for communications from a first WLAN device to a second WLAN device based on wireless channel conditions. This disclosure includes several example message sequences for the link adaptation protocol which can accommodate a variety of uplink or downlink data transmission designs, including single user (SU) and multi-user (MU) transmissions. The example message sequences may be used with orthogonal frequency division multiple access (OFDMA), multiple-input-multiple-output (MIMO), and beamformed transmissions.

公开(公告)号：WO2020033123A1

公开(公告)日：2020-02-13

申请号：PCT/US2019/042631

申请日：2019-07-19

Applicant: QUALCOMM INCORPORATED

Inventor： VERMANI, Sameer ,  TIAN, Bin ,  YANG, Lin

IPC: H04B7/024

Abstract: This disclosure provides systems, methods and apparatuses for concurrently transmitting beamformed data from each of a plurality of access points (APs) to a wireless station (STA). In some implementations, the plurality of APs may operate as a distributed antenna array, and carrier signals of the plurality of APs may be synchronized with each other. A beamforming steering matrix may be determined for each of the plurality of APs, and beamformed data may be concurrently transmitted from each of the plurality of APs to the STA based on corresponding ones of the plurality of beamforming steering matrices.

公开(公告)号：WO2019204591A1

公开(公告)日：2019-10-24

申请号：PCT/US2019/028105

申请日：2019-04-18

Applicant: QUALCOMM INCORPORATED

Inventor： VERMA, Lochan ,  TIAN, Bin ,  VERMANI, Sameer ,  YANG, Lin ,  KIM, Youhan

IPC: H04L5/00 ,  H04L27/26 ,  H04W72/00 ,  H04W84/12

Abstract: An access point (AP) may signal management frames that include two operation information fields indicating two channel widths for different classes of wireless stations (STAs). STAs may identify one of the two operation information fields based on capabilities of the STA (e.g., whether or not the STA is capable of dual band channel bonding, resource unit or physical channel puncturing, etc.). In some cases, one operation information field may indicate a channel width within a first and second frequency band (e.g., within the 5 GHz band and the 6 GHz band), as well as a puncturing scheme associated with the channel width. In some cases, the operation information field may indicate a dual band channel bonding configuration, where two frequency segments associated with the channel bonding configuration are in two different frequency bands. In some cases, a tightened spectral mask may be used for such dual band channel bonding configurations.

公开(公告)号：WO2019070358A1

公开(公告)日：2019-04-11

申请号：PCT/US2018/049364

申请日：2018-09-04

Applicant: QUALCOMM INCORPORATED

Inventor： YANG, Lin ,  TIAN, Bin ,  CHEN, Jialing Li ,  VERMANI, Sameer ,  VERMA, Lochan

IPC: H04L27/34 ,  H04L1/00

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for techniques for 4096 Quadrature Amplitude Modulation (4096-QAM) with Uniform Constellations and Non-uniform Constellations and 16384 Quadrature Amplitude Modulation (16384-QAM) with Uniform Constellations and Non-uniform Constellations in Wireless Local Area Networks (WLAN). These 4096-QAM and 16384-QAM techniques can be implemented in a QAM modulator circuit on the transmit side and in a QAM demodulator circuit on the receive side to increase peak data rate without the need for additional transmission power or bandwidth.

公开(公告)号：WO2019028265A1

公开(公告)日：2019-02-07

申请号：PCT/US2018/045031

申请日：2018-08-02

Applicant: QUALCOMM INCORPORATED

Inventor： VERMANI, Sameer ,  TIAN, Bin ,  CHEN, Jialing Li ,  YANG, Lin

IPC: H04W72/04

Abstract: Certain aspects relate to methods and apparatus for wireless communication. The apparatus generally includes a processing system configured to generate a first frame including an indication of unused resources in a first basic service set (BSS) available to be shared with one or more wireless nodes in one or more second BSSs. The apparatus also includes a first interface configured to output the first frame for transmission to the one or more wireless nodes.

公开(公告)号：WO2017218808A1

公开(公告)日：2017-12-21

申请号：PCT/US2017/037727

申请日：2017-06-15

Applicant: QUALCOMM INCORPORATED

Inventor： VERMA, Lochan ,  TIAN, Bin ,  VERMANI, Sameer ,  YANG, Lin

IPC: H04W84/12 ,  H04L12/18

Abstract: Methods, systems, and devices for wireless communication are described. An access point (AP) may use wireless local area network (WLAN) signaling fields in a multiple user transmission preamble to communicate with a number of stations greater than a threshold. For example, the AP may determine that the number of stations is greater than the threshold and generate a compression indicator and an indication of the number of stations to include in a first signaling field. The AP may then generate a spatial configuration indicator in a second signaling field based on the number of stations and transmit the first and second signaling fields in a preamble of the multiple user transmission. Upon receiving the preamble, a station may identify the compression indicator and number of stations, and the spatial configuration indicator in the first and second signaling fields, and decode the multiple user transmission using a determined spatial decoding scheme.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 接入点（AP）可以使用多用户传输前导码中的无线局域网（WLAN）信令字段来与大于阈值的多个站通信。 例如，AP可以确定站的数量大于阈值并且生成压缩指示符以及要包括在第一信令字段中的站的数量的指示。 AP然后可基于站的数量在第二信令字段中生成空间配置指示符，并在多用户传输的前导码中传送第一和第二信令字段。 一旦接收到前导码，站可以识别第一和第二信令字段中的压缩指示符和站的数量以及空间配置指示符，并且使用确定的空间解码方案来解码多用户传输。

公开(公告)号：WO2017193028A3

公开(公告)日：2017-11-09

申请号：PCT/US2017/031349

申请日：2017-05-05

Applicant: QUALCOMM INCORPORATED

Inventor： VERMA, Lochan ,  VERMANI, Sameer ,  TIAN, Bin ,  YANG, Lin ,  BANERJEA, Raja ,  ASTERJADHI, Alfred

IPC: H04W74/04 ,  H04W52/04 ,  H04W84/12 ,  H04W74/00 ,  H04W52/14 ,  H04W52/24

Abstract: The present disclosure provides various aspects related to techniques for generating trigger frames, at an access point (AP), that reduce the overhead associated with triggering an uplink transmission from the wireless station (STA). Features of the present disclosure achieve this by, for example, utilizing a single per-user information field of the trigger to signal a plurality of random access resource units that may be allocated to the one or more STAs in the network. Such a technique is an improvement over the conventional system that require each random access resource unit to be signaled separately in a separate per-user information field (thus increasing the overhead). Additionally, aspects of the present disclosure allow the AP to effectively signal to the STA whether the one or more resources allocated to the at least one STA are a single user resource unit allocation or a multi-user resource unit allocation.

公开(公告)号：WO2017161042A1

公开(公告)日：2017-09-21

申请号：PCT/US2017/022582

申请日：2017-03-15

Applicant: QUALCOMM INCORPORATED

Inventor： CHEN, Jialing Li ,  YANG, Lin ,  VERMANI, Sameer ,  TIAN, Bin

IPC: H04L5/00 ,  H04W72/04 ,  H04W72/08

CPC classification number: H04W72/0453 ,  H04L1/0041 ,  H04L1/0069 ,  H04L1/0071 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0062 ,  H04L5/0073

Abstract: Methods and apparatuses are disclosed for communicating over a wireless communication network. One such apparatus can include a memory that stores instructions and a processor coupled with the memory. The processor and the memory can be configured to identify one or more impacted tones of one or more resource units (RUs) overlapping a null sub-band, or guard band thereof, of a plurality of sub-bands available for wireless communication. The processor can be further configured to allocate, or receive allocation of, a plurality of channel bonded resource units (RU) of the plurality of sub-bands, based at least in part on the identified impacted tones. The apparatus further includes a transmitter configured to transmit data over the plurality of channel bonded RUs.

Abstract translation: 公开了用于通过无线通信网络进行通信的方法和设备。 一个这样的装置可以包括存储指令的存储器和与存储器耦合的处理器。 处理器和存储器可以被配置为识别重叠可用于无线通信的多个子带中的空子带或其保护带的一个或多个资源单元（RU）的一个或多个受影响的音调。 处理器可以进一步被配置为至少部分地基于所识别的受影响音调来分配或接收多个子频带中的多个信道绑定资源单元（RU）的分配。 该装置还包括配置成通过多个信道绑定的RU发送数据的发射机。

公开(公告)号：WO2017156428A1

公开(公告)日：2017-09-14

申请号：PCT/US2017/021857

申请日：2017-03-10

Applicant: QUALCOMM INCORPORATED

Inventor： CHEN, Jialing Li ,  YANG, Lin ,  VERMANI, Sameer ,  TIAN, Bin

IPC: H04L1/00 ,  H04L1/04 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04W76/15 ,  H04L1/0042 ,  H04L1/04 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0048 ,  H04L27/2608 ,  H04W72/0446

Abstract: Methods and apparatuses for wireless communication according to various tone plans are provided. In one aspect, a method includes determining a first device communicates data within a 40 MHz, 80 MHz, or 160 MHz first frequency range and a second device communicates data within a 20 MHz second frequency range of the first frequency range, selecting first communication parameters for the first device and second communication parameters for the second device based on the determination; and communicating first data with the first device according to the first communication parameters at least partially simultaneously with communicating second data with the second device according to the second communication parameters.

Abstract translation: 提供了根据各种音调计划的用于无线通信的方法和装置。 在一个方面，一种方法包括确定第一设备在40MHz，80MHz或160MHz的第一频率范围内传送数据，并且第二设备在第一频率范围的20MHz的第二频率范围内传送数据，选择第一通信参数 基于所述确定，针对所述第一设备和针对所述第二设备的第二通信参数; 以及根据第一通信参数与第一设备传送第一数据，至少部分地与根据第二通信参数与第二设备传送第二数据同时进行。